Vacuum cleaner



June 7 1927. 1,631,549

F. F. PEASE VACUUM CLEANER Filed April 9, 1923 2 Sheets-Sheet 1 J1 FK/'J? 10 49 June 7 1927.

F. F. PEASE vacuum CLEANER Filed A 'ril 9. 1923 2 Sheets-Sheet 2 V a...June 1,1921.

UNlT-ED srArEs PATENT OFFICE.

run rome'r PIA, 01' EAST BBAIHTBII, MASSACHUSETTS, ABSIGHOB TO I. I.

PEABE INQ, 01' BOSTON, HASSACHUSETTB, A CORPORATION OF MASSACHUSETTS.

VACUUM CLEANER.

Application filed April 8,

The present invention relates to cleaning devlees and more (particularlyto vacuum cleaners of a new an improved type.

It is desirable in connection with vacuum 6 cleaners, especially of thesmaller portable type, that the dust, dirt and other solid matter may becompletely removed from the air with a compact and relatively simpleform of separatin device and without creat- 10 ing an undesirab e backpressure upon the air.

It is accordingly an object of the present invention to prov1de annnproved form of cleaning apparatus which embodies certain desirablefeatures more particularly in connection with the separation of thedust, dirt and other solids from the air.

With this and other objects in view the various features of theinvention consist in certain novel features of construction,combinations and arrangements of parts hereinafter described andclaimed, the advantages of which will be obvious to those skilled in theart from the follo description.

In the accompanying awings illustrating the preferred form of theinvention Fig. 1 represents a side elevation partly in section of acleaner embodying the features of the invention, and Fig. 2 represents afront so elevation partly in section of the cleaner shown in Fig. 1.

According to the present invention,the vacuum created by a revolving fandraws air and dirt throu h a nozzle contacting with the surface tocleaned. Solid particles of comparatively large size such as ins;buttons or the like which may be drawn into the nozzle are initiallyremoved by a stationary separating device which oflr'ers no substantialimpedance to the passage of 'air therethrou h. Thereafter the air withthe dust and 'rt carried thereby is discharged from the fan directlyagainst the surface of a revolving screen, the air passing through theopen meshes of the screen and the solid matter, such as dust and dirt,being thrown off centrifugally and collecting in a removable receptacle.This form of apparatus provides a com act and self-containedconstruction for in ucing a draft of cleaning air and separating thedust, dirt and other solid matter from the air, the entire constructionincluding the separating devices occupying substantially no 1988. SerialNo. 880,707.

greater space than the usual type of cleaning apparatus without theseparator bag or,

its equivalent.

As shown in the illustrated embodiment of the invention the apparatus asa whole,

A draft of air is induced upwardly in the nozzle by a series of fanblades 24 rotating .within a fan'chamber formed in the casing 10, thefan blades projecting from a hub 25 which is secured directly to themotor shaft 26, the latter extending from an electric motor ofconventional type indicated at 28. The motor is rigidly supported withinthe casing 10 by an annular shield or eastin 30 to which the motorcasing is eonnecte The apparatus as a whole may be guided through theprovision of a handle 32 connecte to opposite sides ofthe casing 10through. pivot connections 34. The air drawn upwardly through'the nozzle22 by the fan blades 24 first passes through a coarse mesh screen 36secured to the mner ortion of the casing 10 ahead of the fan. is screenma be secured to the wall of the casmg in any esired manner and is inclose proximity to but out of contact with the revolving fanblades.(logis'te'solid particles engaged and intercepted any, the screen 36drop downwardly in a'collecting chamber 40 and are received in aremovable drawer 42 which may be withdrawn for dumping. The air,together with the dust and dirt passing through the stationary screen36, is directed outwardly to the .tips of the fan blades and thencelongitudinally of the casing across the surface of a conical screen 44,which as indicated clearly in Fig. 1 extends longitudinally of thecaslng 10. Thi coni-. cal screen at its smaller end is connected to aflange 46 forming a part. of the fan and rotating therewith and at itsopposite end to an annular ring 48 connected through a second ring 49with the tip ends of arms 52 screen the air is disc arged rearwardlythrough openings 54 formed in a web .56

which provides a rear wall of the casing. The dust and dirt thrown offfrom the separator screen into the space between the casing 10 and theouter surface of the screen is discharged into a receptacle formed inthe lower portion of the apparatus and into which the revolving screendips. The s ace separating the screen from t e wall 0 the casing ismaintained clear by the revolving extensions 52 forming part of the fan.

With this construction it will be evident that the draft of air isinducedfand the dirt, dust and other solid matter completely separatedfrom the air in a relatively efiicient manner and through the employmentof ap-* paratus which occupies substantially no greater space than thatoccupied by the fan and drivin motor. Furthermore the provision of t erevolving screen as a means of separation permits the substantiallycomplete removal of the dust and dirt without creating any appreciableback pressure on the air. 'T is 1s due not only to the fact that the airpasses freely through the meshes of the screen but in addition to thefact that the revolving screen 'is self cleaning and'the dust and dirtare not permitted to collect nuances sential except so far as specifiedin the claims and may be changed or modified without be understood thatdeparting from the broader features of the I invention.

The invention having been described, what is claimed is:

1. The combination in a vacuum cleaner of an electric motor, .a fanconnected to one end of the motor, a tubular screen beyond the fan andextending about the motor, and means for rotating the screen with thefan.

2. The combination in a vacuum cleaner of a casing,ian-elect1'ic motormounted within the casing, a fan connected to one end of the motor androtating within the casing, and a tubular screen rotating within thecasing around the motor, the space between the outer surface of thescreen and the easing serving to collect dust and dirt thrown from thescreen. a

3. The combination in a vacuum cleaner of a fan, a motor for driving thefan, a

conical separator screen located beyond the fan and having its smallerend adjacent the fan, and means for collecting dust and dirt thrown ofifrom the screen.

4. The combination in a vacuum cleaner of a casing, a fan, a rota screenthrou h which the air is directed rom the fan, t e fan having some ofits blades provided with extensions arranged longitudinally -'of thescreen and close to the inner wall of the casing for preventingaccumulation of dust on the casing, and meansfor collecting dust anddirt thrown from the screen.

FRED FORREST PEASE.

